diff --git a/examples/ha/send_alerts.sh b/examples/ha/send_alerts.sh
index 13ec2276..116989ff 100755
--- a/examples/ha/send_alerts.sh
+++ b/examples/ha/send_alerts.sh
@@ -1,3 +1,4 @@
+#!/usr/bin/env bash
 alerts1='[
   {
     "labels": {